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The 1/8th Sleep

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Re: The 1/8th Sleep

#11

Post by ninjin »

Interesting. Living in Japan there is still a strong culture to try to avoid using air conditioning at night (in particular among the elderly), so there is a whole market for both staying warm in bed during winter and cool in bed during the hot and humid summers. My own family has primarily been using mattress protectors that conduct heat more efficiently [1], towel blankets (タオルケット) [2], and gel pads than are stored in the fridge and then put under the pillow cover just before you go to sleep. There are plenty more on the market, but I have solely by using the conducting mattress protectors been able to sleep with the air conditioning several degrees higher than I would have been able to in the past.

[1]: https://www.nitori-net.jp/ec/product/7567051s

[2]: https://www.nitori-net.jp/ec/cat/Shingu/Blanket/BlanketTowel...

Re: The 1/8th Sleep

#13

Post by samtho »

> […] I was put off by the product due to the now-mandatory paired subscription ($200/yr with purchase, annually paired only, can cancel after) […]

It is both confusing and fascinating how some companies manage to put out a product with a subscription, the existence of which defies logic and consumer expectation, and yet they manage to find a group of people who tolerate it.

Re: The 1/8th Sleep

#15

Post by CalRobert »

taneq wrote: post #3

A cooler mattress is better to sleep on? That sounds like the opposite of my experience, unless the weather is uncomfortably warm and there’s no air con.

“ unless the weather is uncomfortably warm and there’s no air con.”

I think that’s what this is for? I love a cool bed on a warm evening

Re: The 1/8th Sleep

#16

Post by sagarm »

kijin wrote: post #8
alwayslikethis wrote: post #7

Earlier quoted context omitted.

> Compressor I would think these would be too loud for a comfortable sleep environment.

You could put a small compressor outside and connect a well-insulated hose to pump the refrigerant inside, just like a split system air conditioner. Then the noise in your bedroom will be no worse than the occasional hum of a fridge in the other room. As someone who lives in a humid climate, I wouldn't even think of using an evaporative cooler anywhere in my home, for any purpose, period. It's either compressors or n…

I believe the Eight sleep uses a Peltier cooler. Not terribly efficient, but the ΔT and the load are low (a human body puts out <100W while asleep). Plus, a Peltier can also heat with some supporting electronics.

Re: The 1/8th Sleep

#17

Post by globular-toast »

kijin wrote: post #10

Your bed needs to be breathable. That's the single most important thing. A cool bed without proper ventilation will attract condensation and mold, and make you feel damp. A good spring mattress sitting on top of slats will never get uncomfortably hot or cold in any particular spot, because air moves freely in and out, powered by your own body movements. The mattress should also be as firm as you can tolerate. A firm…

I'll add to this I find a wool blanket/duvet to be so much better than polyester/plastic. When I use plastic duvets in hotels etc it feels like I'm wrapped in a plastic bag.

Re: The 1/8th Sleep

#18

Post by globular-toast »

JackMorgan wrote: post #4

I was just about to buy almost this exact setup! Excellent to see it's effective. I thought I was mad looking into fish tank coolers. I was thinking though skipping the evaporative cooler and going with a compressor model. Quite a bit more expensive but I think it'll be more effective in the humid North East. I have realized over the years that I need to be seriously cold to sleep well. My health watch always registe…

What room temperature are we talking? I used to think I could not be too cold at night, until recently I lived in a place that was seriously cold (basically no insulation). Turns out there is a limit! Room temp would easily drop below 15 degrees, often closer to 10!

Re: The 1/8th Sleep

#19

Post by noelwelsh »

I feel that the vast majority of people should not need an elaborate setup to sleep well. If you need to spends hundreds or thousands of currency units on a setup beyond a basic bed, there is something wrong that could probably be fixed in a simpler way.

Re: The 1/8th Sleep

#20

Post by switch007 »

noelwelsh wrote: post #19

I feel that the vast majority of people should not need an elaborate setup to sleep well. If you need to spends hundreds or thousands of currency units on a setup beyond a basic bed, there is something wrong that could probably be fixed in a simpler way.

Right. If people are overheating at night during relatively normal temperatures, it’s probably a medical/diet issue or something in the bed is making you over heat, such as stupid foam.
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