Does this Smoosh flat under the weight of a person?

It doesn't "smoosh" flat and it does provide a mild arch and the added insert increases the arch - and it's more comfortable than the plastic versions, but it doesn't arch the back as much as the plastic versions do.

Can you use all night to sleep on? Or use in your office chair all day?

I dont think you would want to sleep on this. One, it is to be used a short time to stretch the back and is not particularly comfortable while doing that and two, you arent going to stay in one position all night without moving. You could use it in your office chair but unless you are sitting hard against it, it will want to move. Both the uses you have asked about are not what the product is for and there are other products designed for chairs and sleeping that would be better. This is for short duration stretching the back muscles.

Does this flatten like a pancake when the weight of a person is on it?

I suppose it depends on the weight put on it. It didn't for me. It's more comfortable than those hard plastic ones. Though there is some give to it, it doesn't just flatten out.

Will this work with a 300lb person

It is very firm and I think it would work.

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Reviews

J**O

Great tool for people suffering from lower back pain . If you have herniated disks or sciatica pain radiating down your leg this is something that can help you . I have used in for 6 months and it has done wonders for stretching and strengthening my back muscles.

6.07.2025

K**E

I don't have any medical condition per se, but I have been experiencing slight back pains for the past year or two. If I stretch my back, I'm okay for that moment, but the pain comes back immediately. So I tried getting this back stretcher thing. I was actually skeptical when getting it, but I figured it'll help me with my posture, so I got it, and it works better than I expected. It does feel uncomfortable at first but after 5 or 10 minutes, I think it was, I got up and was pleasantly surprised to find that slight back pain I've been having without really being aware of it, was gone. Before I'd do the back stretcher thing, I'd be moving around a bit gingerly, which I hadn't know I was doing until I used the back stretcher and the unnoticeable pain had gone away and I could move freely. I slacked off doing it so I'm back to moving around gingerly, but just knowing that there's something that'll give me relief from my slight back pain and immobility is a huge relief. I wouldn't go around recommending the product to everyone only because everyone has different back issues, and I'm sure this product is not end-all solution to everything. I will just say that this works for me.

20.07.2022

J**K

Not comfortable for me to use.

3.01.2026

K**Y

To a good product, no value for the money, hurt my back, no comfort using, very small, and when Returned Was charged shipping and I returned myself. Still fighting it. Not worth it.

9.03.2025

K**K

This is a soft support to lie on. It seemed to place traction on my back. I have Scoliosis and my back isn't straight and symmetrical. There was discomfort after a minute, but I want to continue to use it to loosen tight fascia.

6.08.2025

ASIN	B095KGVJZN
Department	Unisex-Adult
Item model number	Lower Back Stretcher Shell Shaped
Manufacturer	RESTCLOUD
Product Dimensions	29.97 x 27.94 x 6.1 cm; 481 g

RESTCLOUD Back Stretcher for Back Pain Relief, Lower Back Stretcher Back Stretching Cushion, Lumbar Stretcher Device Helps with Spinal Stenosis Herniated Disc Sciatica Nerve

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