Jo 's link (above) shows many places to purchase sheepskin products. Prices & quality vary-- so may want to do some research . I will be doing this soon and will share what I learn if interested. (it can get confusing)

I got my medical sheepskins from www.lawsonsheepskins.com

I think their prices for the medical sheepskins is good, as well as quality. those I purchased have 3 inch pile-- like carpets, 'deeper' pile offers more 'comfort' or cushioning. Most medical sheepskins seem to average 1 to 2 inches.

Matress covers/toppers/overlays also vary-- I've seen better prices for these than at Lawson's. quality & how 'fit' or cover mattress vary
as does pile length (i've not seen any yet that are 3", like my medical pads.)

there are other things to check & consider --like care. Some say can be machine washed --others will need 'special care , cleaning.

Hope this helps.
more so hope you find what you need.
there are many products (inc. synthetic 'sheepskins' and other types of "topper's' and matresses like gel Mattress that Twinkletoes liked.

Good luck
blessings