"i ordered this bed for my overweight chihuahua. she liked my tempurpedic bed, and the matching pillow so much that i thought i'd get her one. when i arrived she was most excited about the treat samples that came with it. she started chewing one of those treats right away on the new bed....i thought "oh, she likes the new bed" but when it came to bed time and i put the new one right next to the old one and put her in the new bed, as soon as turned away she got back in the old bed. so the next night i gave her just the new bed, and she slept on the floor. the only way i could get her to sleep in the new bed was to put it in the old bed (the old bed had tall sides with the little opening in the front) and now she loves it. i guess she didn't like the low sides."