[{"data":1,"prerenderedAt":551},["ShallowReactive",2],{"project-24139339":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":46,"post_text":48,"what":49,"said":78,"maker_in_thread":210,"shape":220,"grid":224,"attempts":513,"same_week":514,"maker_shows":39,"maker_hidden":543,"reader_version":544,"card":545},"24139339","Bedtime calculator","I'm 15 and made a bedtime calculator with React JavaScript","title","Show HN: I'm 15 and made a bedtime calculator with React JavaScript","https:\u002F\u002Fwww.sleepsources.com\u002Fbed-time-calculator\u002F","sleepsources.com","joshternyak",1597285374,2020,312,121,126,3028,5,"legend","consumer_social","sleep calculator","web_app",[24,25,26,27],"bedtime calculator","sleep cycles","wake up time","sleep schedule","mixed",0.225,{"positive":31,"neutral":32,"mixed":33,"critical":34},23,17,6,9,55,{"idea":37,"design":40,"docs":42,"execution":44,"pricing":45},{"positive":38,"critical":39},1,2,{"positive":41,"critical":39},8,{"positive":39,"critical":43},0,{"positive":43,"critical":39},{"positive":43,"critical":43},[18,18,18,47,18,47,47,47,47,18,18,47,38,38,38,18,43,18,47,18,18,47,47,47,38,47,18,18,18,18,47,18,47,47,38,43,38,18,43,18],3,null,{"problem":50,"audience":57,"pricing":48,"motivation":61,"time_to_build":48,"stack":65,"openness":76,"stage":77,"team_size":76},{"value":51,"source":52,"evidence":53},"Waking up groggy from bad timing relative to REM sleep cycles","maker",[54],{"id":55,"by":11,"text":56},"24139340","Ever wake up feeling groggy, even though you thought you had enough sleep? It turns out that by timing your wake up time based on REM cycles, you can wake up more refreshed and…",{"value":58,"source":52,"evidence":59},"People wanting to optimize their sleep schedule",[60],{"id":55,"by":11,"text":56},{"value":62,"source":52,"evidence":63},"Wanted to test front-end skills on a useful tool",[64],{"id":55,"by":11,"text":56},[66,72],{"value":67,"source":52,"evidence":68},"React JavaScript",[69,71],{"id":70},"post",{"id":55,"by":11,"text":56},{"value":73,"source":52,"evidence":74},"CSS animations",[75],{"id":55,"by":11,"text":56},"unknown","launched",{"praise":79,"objections":122,"requests":164,"questions":185,"alternatives":201},[80,100,111],{"value":81,"source":82,"evidence":83},"Clean, simple, easy-to-use design","commenter",[84,88,92,96],{"id":85,"by":86,"text":87},"24140820","jfax","I will put aside my anti-JavaScript zealotry and say this is good, nice, informative, etc. Couldn't be more simple to use.",{"id":89,"by":90,"text":91},"24141394","Tade0","Good work - no fluff, straight to the point. I got value out of this in under a minute.",{"id":93,"by":94,"text":95},"24140788","themacguffinman","This is great. I've traditionally eye-balled it to be 90 min or 3hr cycles which works as a quick hack, but I'll consider this calculator next time. Can I just say, it looks like…",{"id":97,"by":98,"text":99},"24140363","shafkathullah","Beautiful, really nice!",{"value":101,"source":82,"evidence":102},"Useful, informative content and sources",[103,107],{"id":104,"by":105,"text":106},"24140230","Hnrobert42","Wow! The site and its functionality are cool. I am not a web dev, so I can’t say much more than that. What really impresses me is the site’s collection of information and its…",{"id":108,"by":109,"text":110},"24154333","r0rshrk","Amazing project. I especially liked all the useful info provided",{"value":112,"source":82,"evidence":113},"Impressive for a 15-year-old",[114,118],{"id":115,"by":116,"text":117},"24140027","mchusma","Great project! Happy to see young hackers at work. Doing things like this get you valuable experience, more useful to actually working than school.",{"id":119,"by":120,"text":121},"24140969","globular-toast","Cool. I learnt some things. I don't care that you're 15, though.",[123,138,153],{"value":124,"source":82,"evidence":125},"Fixed 90-minute cycle is too simplistic; cycle length varies",[126,130,134],{"id":127,"by":128,"text":129},"24139525","191101","This is quite nice but I feel a bit too simple. Sleep cycles vary widely from 70-120 minutes per person. I think an advanced mode where a person can input their own record of…",{"id":131,"by":132,"text":133},"24141543","blauditore","Those calculations should be taken with a grain of salt: Sleep cycle length of 90 minutes is just a rough average. It varies throughout the night and gets affected by other…",{"id":135,"by":136,"text":137},"24141414","ryannevius","I thought sleep cycle length is variable to an extent. I once calculated my own to be around 110 minutes per cycle, rather than 90 minutes. Using that as a base for calculating…",{"value":139,"source":82,"evidence":140},"Time display bugs: wrong times on Firefox Android, 12\u002F24-hour inconsistency, clock off by an hour",[141,145,149],{"id":142,"by":143,"text":144},"24143644","abhi_kr","So I happened to open this site on Firefox on Android and it's giving me strange bed timings. For wake-up time at 6:00AM, it's showing me the following bed timings: 3:30PM,…",{"id":146,"by":147,"text":148},"24141474","gosslot","The site looks pretty nice. I have no experience in web design, so no real technical input from my side, but I noticed it is inconsistent with the time representation. You use…",{"id":150,"by":151,"text":152},"24143300","Octopuz","Nice idea. The clocks are one hour off here: the text says 00:55 but the clock shows 11:55 pm, and so on.",{"value":154,"source":82,"evidence":155},"Site appears to be affiliate or sponsored mattress marketing",[156,160],{"id":157,"by":158,"text":159},"24141479","sverhagen","If this is done by a fifteen year old, well done. Given the poor quality of so many web sites, well done regardless. And my apologies if I'm entirely off here, but given how…",{"id":161,"by":162,"text":163},"24141401","crispyporkbites","It’s sponsored content, there’s a link at the bottom",[165,170,178],{"value":166,"source":82,"evidence":167},"Custom sleep cycle length input",[168,169],{"id":127,"by":128,"text":129},{"id":135,"by":136,"text":137},{"value":171,"source":82,"evidence":172},"Account for time to fall asleep and clarify it",[173,174],{"id":104,"by":105,"text":106},{"id":175,"by":176,"text":177},"24141853","RugnirViking","This is really cool. My only critisism is based on the text below, i can't figure out if the times shown take into accound the 10-20 minuites to fall asleep, or if I should get…",{"value":179,"source":82,"evidence":180},"Go-to-bed-now feature",[181],{"id":182,"by":183,"text":184},"24140088","senectus1","I'm a long time user of sleepyti.me but i like this interface better. It would be even better if the times displayed and the \"try another time\" was all on the same page. I…",[186,190],{"value":187,"source":82,"evidence":188},"Whether the times include time to fall asleep",[189],{"id":175,"by":176,"text":177},{"value":191,"source":82,"evidence":192},"Whether the maker built the wider sleepsources site",[193,197],{"id":194,"by":195,"text":196},"24142702","jasonlfunk","Great work! I'm curious how this tool relates to the rest of the site: https:\u002F\u002Fwww.sleepsources.com Is it a family-run site that let you create and launch the calculator? Or did…",{"id":198,"by":199,"text":200},"24146503","mikeymz","did you make the mattress and bed frame site as well?",[202],{"value":203,"source":82,"evidence":204},"sleepyti.me",[205,209],{"id":206,"by":207,"text":208},"24141130","jedberg","I've been using https:\u002F\u002Fsleepyti.me for many years. It's simple and easy, which is usually good when I'm tired near bedtime. I actually like your time picker better, but…",{"id":182,"by":183,"text":184},{"comments":211,"answered":39,"key":212},36,[213,214,217],{"id":55,"text":56},{"id":215,"text":216},"24140263","Thank you so much for all your encouragement. I will definitely use this feedback to improve the page. Thank you again for all the encouragement and advice.",{"id":218,"text":219},"24144023","Thanks so much for the feedback!",{"commenters":221,"max_depth":222,"maker_replies":211,"first_comment_mins":43,"lifespan_hours":223},63,4,28,[225,227,231,234,238,242,244,245,249,252,255,259,261,262,263,265,268,270,272,275,278,282,285,289,291,294,297,299,303,305,309,311,315,317,319,321,324,327,330,334,338,339,341,343,346,348,350,352,354,356,360,362,366,371,373,374,376,379,381,383,386,391,394,398,400,401,403,406,410,414,416,420,425,427,429,431,434,438,440,442,444,449,453,455,457,459,461,464,466,469,472,474,476,479,482,485,489,492,495,497,499,501,503,507,511],[55,43,43,226,11,38],"project\u002Fneutral\u002Fidea",[228,43,18,229,230,43],"24140753","maker\u002Fpositive\u002Fnone","gms",[232,43,18,229,233,43],"24140903","onion2k",[235,43,47,236,237,43],"24141417","project\u002Fmixed\u002Fidea","phh",[239,43,18,240,241,43],"24143213","project\u002Fpositive\u002Fdesign","iask",[104,38,18,243,105,43],"maker\u002Fpositive\u002Fdocs",[215,38,43,229,11,38],[246,38,47,247,248,43],"24140467","maker\u002Fneutral\u002Fdocs","xupybd",[250,38,47,247,251,43],"24142869","tylerscott",[253,38,47,247,254,43],"24143875","NamTaf",[256,38,43,257,258,43],"24145392","commenter\u002Fneutral\u002Fnone","valbaca",[260,38,47,247,105,43],"24154201",[206,39,18,240,207,43],[218,39,43,229,11,38],[194,47,47,264,195,43],"maker\u002Fneutral\u002Fnone",[266,222,18,229,267,43],"24141981","sidyapa",[269,222,43,229,11,38],"24144035",[127,18,38,271,128,43],"project\u002Fcritical\u002Fidea",[273,18,43,274,11,38],"24139585","maker\u002Fneutral\u002Fidea",[276,18,47,226,277,43],"24140097","rckoepke",[279,18,43,280,281,43],"24140028","other\u002Fneutral\u002Fnone","natdempk",[283,18,43,280,284,43],"24144570","crooked-v",[286,33,47,287,288,43],"24140755","project\u002Fmixed\u002Fdesign","teniutza",[290,33,43,229,11,38],"24144326",[85,292,18,293,86,43],7,"project\u002Fpositive\u002Fnone",[295,41,43,280,296,43],"24142667","rswail",[298,41,43,264,11,38],"24144395",[300,34,18,301,302,43],"24143139","project\u002Fpositive\u002Fidea","gumby",[304,34,43,229,11,38],"24144313",[306,307,47,226,308,43],"24140915",10,"INTPenis",[310,307,43,264,11,38],"24144361",[312,313,43,280,314,43],"24140990",11,"Accacin",[316,313,43,264,11,38],"24144351",[131,318,38,271,132,43],12,[320,318,43,274,11,38],"24144304",[146,322,38,323,147,43],13,"project\u002Fcritical\u002Fdesign",[142,325,38,326,143,43],14,"project\u002Fcritical\u002Fexecution",[328,325,43,329,11,38],"24144030","maker\u002Fneutral\u002Fexecution",[331,332,47,333,248,43],"24140484",15,"project\u002Fneutral\u002Fpricing",[335,332,43,336,337,43],"24141199","other\u002Fneutral\u002Fpricing","petargyurov",[161,332,47,333,162,43],[119,340,18,229,120,43],16,[342,340,43,264,11,38],"24144449",[344,32,43,280,345,43],"24141167","Semaphor",[347,32,43,264,11,38],"24144406",[115,349,18,229,116,43],18,[351,349,43,264,11,38],"24140172",[135,353,47,226,136,43],19,[355,353,43,274,11,38],"24144413",[357,358,18,240,359,43],"24142753",20,"nooyurrsdey",[361,358,43,264,11,38],"24144345",[363,364,18,293,365,43],"24146000",21,"lohoho",[367,368,47,369,370,43],"24140013",22,"project\u002Fneutral\u002Fexecution","cel1ne",[372,368,43,329,11,38],"24140168",[93,31,18,240,94,43],[375,31,43,264,11,38],"24144430",[175,377,47,378,176,43],24,"project\u002Fmixed\u002Fdocs",[380,377,43,247,11,38],"24144419",[182,382,47,287,183,43],25,[384,382,43,385,11,38],"24140177","maker\u002Fneutral\u002Fdesign",[387,388,47,389,390,43],"24140336",26,"project\u002Fneutral\u002Fdesign","jtchang",[392,388,43,393,288,43],"24140774","commenter\u002Fneutral\u002Fdesign",[395,396,47,236,397,43],"24142714",27,"martinvol",[399,396,43,264,11,38],"24144411",[150,223,38,326,151,43],[402,223,43,264,11,38],"24144400",[404,223,43,280,405,43],"24147491","alasdair_",[407,408,47,226,409,43],"24141388",29,"kenneth",[411,412,18,229,413,43],"24142569",30,"KaiIrwin",[415,412,43,264,11,38],"24144438",[417,418,47,287,419,43],"24146435",31,"dosethree",[421,422,18,423,424,43],"24142647",32,"maker\u002Fpositive\u002Fdesign","cvaidya1986",[426,422,43,264,11,38],"24144424",[89,428,18,293,90,43],33,[430,428,43,264,11,38],"24144444",[108,432,18,433,109,43],34,"project\u002Fpositive\u002Fdocs",[435,436,18,240,437,43],"24140981",35,"naveen_",[439,436,43,264,11,38],"24144452",[441,211,18,229,413,43],"24142567",[443,211,43,264,11,38],"24144435",[445,446,38,447,448,43],"24142231",37,"maker\u002Fcritical\u002Fnone","xariusdrake",[450,451,47,226,452,43],"24141655",38,"anon9001",[454,451,43,264,11,38],"24144487",[97,456,18,240,98,43],39,[458,456,43,264,11,38],"24144534",[198,460,47,264,199,43],40,[462,463,18,423,424,43],"24142641",41,[465,463,43,264,11,38],"24144459",[157,467,38,468,158,43],42,"project\u002Fcritical\u002Fnone",[470,467,38,468,471,43],"24141531","strogonoff",[473,467,43,264,11,38],"24144500",[475,467,43,257,471,43],"24144974",[477,467,43,280,478,43],"24141648","bemmu",[480,467,43,280,481,43],"24141828","goblin89",[483,467,43,280,484,43],"24141887","mcintyre1994",[486,467,47,487,488,43],"24142390","project\u002Fneutral\u002Fnone","BtM909",[490,467,38,323,491,43],"24143020","sixQuarks",[493,467,47,264,494,43],"24143347","jaybeeayyy",[496,467,18,229,491,43],"24143468",[498,467,43,264,11,38],"24144533",[500,467,43,264,11,38],"24144515",[502,467,43,264,11,38],"24144503",[504,467,43,505,506,43],"24145887","other\u002Fcritical\u002Fnone","Hitton",[508,509,18,229,510,43],"24143304",43,"jakehop",[512,509,43,264,11,38],"24144446",[],[515,520,525,530,535,539],{"id":516,"name":517,"points":518,"category":519},"24158125","Photo Realistic QR-Codes",482,"creative",{"id":521,"name":522,"points":523,"category":524},"24178295","ScreenplaySubs",289,"productivity",{"id":526,"name":527,"points":528,"category":529},"24189582","Dropbase 2.0",261,"data",{"id":531,"name":532,"points":533,"category":534},"24177804","GradientMagic",259,"dev_tools",{"id":536,"name":537,"points":538,"category":519},"24205416","Handwritten.js",255,{"id":540,"name":541,"points":542,"category":524},"24199419","Archivy",219,false,"v2",{"id":546,"name":5,"line":6,"ai":543,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":547,"top":18,"kw":548,"maker":11,"domain":10,"tier":19,"attempts":43,"strip":549,"url":9,"mix":550,"praise":81,"objection":124,"sub":21},24139339,0.23,[24,25,26,27],"5553533335531115053553331355553533101505",[31,32,33,34],1794036594670]