Did i post something in here last night that got deleted? I can't remember.
No, that'll be the benzos.

You're right in saying temazepam is usually used for sleep but many people find it recreational as benzos go (which in all honesty isn't all that recreational). The dose you took was on the low side but any significant increase would have compounded your drowsiness. I personally enjoy temazepam as an accompaniment to a nice relaxing night in but if you expect too much from it then it's bound to be a disappointment.
As always it's best to use these things occasionally and when you really need them, though nobody can begrudge you the odd experiment here and there.