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Sleeping mats come in a number of different configurations, but rarely are any suited for the actual ground you lay on, which is normally angled at some degree. What to do?
The Biphasic Sleeping Mat is built of two air chambers; imagine two thin wedges, stacked oppositely on each other to create the
thick rectangular sleeping mat we would normally expect.
Simplly letting the air out of one wedge would incline the entire deal and give you a better sleeping experience.
(These come in horizontally and vertically biphasic variants.)
self inflating mat
https://seatosummit...-inflating-mat.html
there is a cross section in one of the photos, showing the foam layout [mylodon, Apr 10 2023]
[link]
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+ for the idea process, but think the tapering shapes will be hard to retain without some built in rigidity. |
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That's expected; all sleeping mats currently do this already to keep flat and not become a sphere. |
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Trying to keep it mechanically simple. |
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Just thinking again about what xen said, I was assuming the mats would be similar to the 'self inflating' mats which are filled with a foam glued to either side, providing that sort of structural rigidity. (see link) |
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A self inflating mat sounds terrifying. I don't want myself inflated. |
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The device would end up forming a curve, with the deflated thin part being lowest. It sounds very uncomfortable. [-] A version with a dozen cells could accomplish this, but it sounds pretty baked to me. |
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