Hehehe fall off? Sorry, that just made me chuckle
I have been raising puppies this way for a very long time and I have never had a crate fall of the bed. Think about it, it's just not likely to happen
This is something I actually recommend to people who either have gotten a pup from me, or anyone who asks.
It really helps the puppy to feel safe and calm, and not alone. It gets the puppy used to its new home, family and calms them. So, it helps you to get more sleep
I usually only have to do this for the first few nights and then I move them to the nightstand. But for me, I have a hubby and a couple other dogs in my bed so I usually put them on my nightstand right by my head.
Pennie is still on my nightstand in her tiny crate (big for her though..lol), she is 6 months now and has been sleeping there since 8 weeks and she has never fall off there
To give the idea of the size of her crate....I don't have a big nightstand..but I have my lamp, phone, clock, and Pennie's crate all on there. Sometimes I knock the lamp off..hehehe
Another kind of crate that is great for this is the soft sided kind, like Sherpa carriers. And you wont roll over on these.