can't get much sleep

[Nefertiti]

Hi,

Is it Okay to say the following?

1. She can't get as much sleep as she used to get.

2. She can't get as much sleep as she used to.

3. She can't get as much sleep as used to.

4. She can't get as much sleep as it used to be.

5. She can't get much sleep as used to.

6. She can't get much sleep like used to.

Any better suggestions?

Thanks,

[BobK]

1 and 2 are fine; the rest aren't. Some native speakers (at least of Br Eng, particularly the older ones) say "She can't get as much sleep as she used", but I think this is becoming less common.

b