Of course I let my dogs sleep in the bed with me! From the largest to the smallest! I remember Rocky, the Giant Alaskan Malamute who weighed 210 pounds who slept on top of the covers, while Hobby, my Collie/Shepherd/Wolf mix slept underneath the covers, cuddling with Tom cat.
Our miniature Poodle at the time slept with my son, and wouldn't let anyone come near my son until he was ready to get up in the morning.
Poco, the Border Collie slept with me. Updated to now, for the past 10 years I have had Chico the Chihuahua sleep with me cuddling up against my upper body, and Coco the Chihuahua who sleeps in some odd manner curled up around my neck. It's hard to move when he decides to magnetize himself against me and growls if I have to turn over to the other side, as I'm a side sleeper.
I find great comfort by having my dogs sleep with me. I also had cats that slept in the bed with me (as Tom cat did).