I don't mind sleeping with puppies but I have also done the crate by my bed. Puppy crate should be just big enough for the puppy to sleep in comfortably. A soft stuffy to snuggle with is a good idea unless you have a chewer.
I don't generally muck around about crating, it's just business. Puppy goes in and I walk away. I have had a couple that were in danger of hurting themselves, they slept with me while I worked on positive association with the crate.
The following is just a copy/paste from Shadows FB but I will add that I generally put puppies to bed around 11, get up at 3 or 4 for a pee break for the first few days then back to bed until 7ish. I restrict movement by baby gates, some prefer tethering. The short version is that I take the puppies out often enough and watch them closely enough that no accidents happen.
If your puppy messes in the house, you made a mistake.
Puppies do not get left unattended, loose in a house. Crate or eyes on at all times. It shouldn't take weeks to house train a puppy, and you are stressing yourself out allowing it to.
Food and water are restricted at night, morning comes you take the puppy out of it's crate and carry it outside. In your pj's and slippers. Once puppy has relieved itself you praise, praise, praise. Best puppy ever! Then inside, food and water, and coffee. Then back outside. Puppy pees and poops and you praise, praise, praise. Then inside, play for 10 minutes, back outside. This is not rocket science. Eyes on the puppy at all times or it is in it's crate. Don't let it have an accident in the house and pretty soon it will know to go outside.
I do not understand the bell thing? Why complicate the issue.
I also train my dogs for one spot in the yard only. I do this by taking them only to that spot and promptly cleaning up any other areas if an accident occurs.
Keep me posted. I like puppies.