Milliard Full Body Pillow - Shredded Memory Foam with Washable Cover - Long, Hypoallergenic, Firm Hug Pillows for Side and Back Sleepers - Fits 20x54 Pillowcase for Comfortable Sleep (White Bamboo) https://www.amazon.com/dp/B07CLQLST4/ref=cm_sw_r_cp_api_glt_fabc_S0TVC4TC55WZFS4M8NM0?_encoding=UTF8&psc=1
Here’s a good pillow, good luck!
Here’s some google results
An Etsy one
And a mildly-lewd one
Milliard Full Body Pillow - Shredded Memory Foam with Washable Cover - Long, Hypoallergenic, Firm Hug Pillows for Side and Back Sleepers - Fits 20x54 Pillowcase for Comfortable Sleep (White Bamboo) https://www.amazon.com/dp/B07CLQLST4/ref=cm_sw_r_cp_api_glt_fabc_3EP94MCN01THH2FG5VXQ here is a pillow
NTA. Why doesn't your mom let her snuggle on her for two hours?
Your sister needs a Body Pillow, a heating pad, and Advil gel caps (very effective and fast acting).
Pillow: Milliard Full Body Pillow, $34.99 - https://www.amazon.com/dp/B07CLQLST4/ref=cm_sw_r_apan_glt_fabc_RBCY54A8PQWSF467NHSK
Heating pad: MIGHTY BLISS Large Electric Heating Pad for Back Pain and Cramps Relief, $29.99: https://www.amazon.com/dp/B07G2M1LBW/ref=cm_sw_r_apan_glt_fabc_07NAHERQ6Z6E0HZ0NRCM?_encoding=UTF8&psc=1
If you can afford it, buy them yourself to give to your sister.
I just use my body pillow from before I was pregnant. I'm a side sleeper with hip pain, I love this one! I went through several cheaper ones before getting one made out of memory foam.
https://www.amazon.com/Milliard-Shredded-Dakimakura-Removable-Breathable/dp/B07CLQLST4
https://www.amazon.com/dp/B07CLQLST4/ref=cm_sw_r_cp_apa_i_dLmwFbJGPFF4R
buy this pillow, and then literally any anime character pillowcase for it.