Psyche (43lbs) sleeps with my every night. Some nights I'll allow Crash (55lbs ish) to sleep with me, and when Simi's old enough she'll likely have a night here or there where she sleeps with me.
That said, I've been known to take a nap with Crash, Psyche, Simi and Zoey all in the bed, then sometimes one or two of Mom's dogs will hop up.
ETA: Before losing Bella, she used to sleep with me every night. She was 27 inches tall and about 85lbs and liked to sleep back to back with me, legs stretched long, and without her feet hanging off the edge, on a queen bed...
She hogged, but I got so used to it that after losing her Psyche had to start sleeping with me cause I couldn't sleep otherwise.