I have a completely different problem - I almost never dream. If I do, they're very short, and very difficult to remember.
Probably related, I've struggled with depression nearly my entire adult life. I've learned to cope, drug free, but yea, I'm sure on a neural level my brain just isn't firing at peak levels like a normal person.
Ask to not be disturbed.
Go to sleep.
Sleep until you wake up.
Stay laying down until you fall asleep again.
Your sleep will now be shallow, and it will be easy to drift in and out, and retain a half-conscious state for extended periods.