It takes several clicks to get inside a bed

Was this a local game or were you playing on a remote server? Sounds like a latency issue.

Do you mean that by only clicking on certain parts of beds you can sleep? I do find that sometimes the hit box does not coincide with where you can actually click.

I was playing on singleplayer and I had to click many times.

this happens to me in 1.4.4 as well.