Benzo's, Oxys, Seroquel and basically every recreational hypnotic, sedative or opiate/opioid is unavailable to me.... 
I usually have Xanax on hand, or a bunch of cones after 8hours normally dements my brain enough to make it decide that it should shutdown before the confusion overwhelms it's existance. Everyones differnt I suppose. I can get to sleep with out aid after 8-9 hours after dosing too. Just chuck on piper at the gates and lay I bed. Quite soothing really.
Had a pretty good time on three rubber duckies on Saturday followed by an awesome six hour sleep only eight hours after dosing. This was aided by a 768mg cold water extraction of codeine pills (my tolerance is pretty high for that stuff, similar doses are used one to two times a week)
Getting to sleep just as it began to wear off was was a shock to myself as the stimulant effect of LSD is very pronounced to me. For example my past trips, always dosed between two and four tabs of reputable blotters (e.g. panthers, cookie monsters and ducks) and I always drink six Beers or OP Rums the entire duration of the trips. If dosing on a Friday night, will rule out any form of sleep until early Sunday morning! Which makes Saturday quite ordinary to say the least
My efforts to induce sleep post-ducks trip include sucking down 70 nangs in the space of a few hours, doing this while sober/drunk and/or stoned makes me sleepy as hell. It didn't work and made me feel even worse along with sleep deprivation. Tried smoking pot last weekend 23 hours after dosing 3 ducks. Pot always makes me pass out within two hours, especially when I'm "bothed" as my friends and I call it (i.e drunk and stoned) I smoke maybe a handful of times per year so I'm a lightweight. But this bought the LSD visuals and stimulation back to a T+8 hour after dosing level and it was even harder to sleep
So moral of this post is I think I have found the end all and be all to my LSD induced temporary insomnia... Over the counter opiates
What are everyone Else's methods of getting to sleep post-trip?
Take it earlier in the day
The few posts above me show how different everyone's tripping preferences are and this is only a tiny cross section of BLers, let alone society in general.
It brings me back to my earlier statement of "What people will and wont enjoy when tripping is as broad as the likes of the general public."
Some people watch TV, while others hate watching TV (even movies) while they trip. Some will listen to psychedelic music, but others will listen to death metal or top 40 (sigh) all night. Some will want to stay inside with all the creature comforts and others love nothing more than tripping while camping in the bush or on a nice beach. I usually crave physical contact when I trip (sex is amazing on LSD), but I know a lot of people who can't stand the thought of sex when they trip.... Each to their own.
All you can do is find out what appeals to you, in different states of consciousness and integrate what you learn over successive trips to make your next trip more enjoyable. I've found that It's the little thing that make all the difference
