Taking part of one's thryoid meds at night is something many have been doing. (with docs OK)

As well many folks experiences of improved wellbeing, and for some, just plain convenience of not having to worry about what they eat in the morning or rushing to work etc., here's why from this post

There is a diurnal cycle of TSH secretion from the anterior pituitary. In humans, peak TSH concentration occurs in the night and the nadir in the late afternoon (Fisher, 1996). Diurnal cycles have been reported for thyroid hormone levels in rats Cokelaere et al., 1996 ), amphibians (Gancedo et al., 1997) ...

It is normal to have some thyroid hormone released at night, so taking some at night makes sense.(apologies to comparing humans to rats and amphibians but common things do seem to occur amongst animals especially between rats and humans which are surprisingly fairly close mammals as far as the way our bodies work!)
Cokelaere-Influence of feeding pattern on thyroid hormones in long-term food-restricted rats
http://www.thieme-connect.de/ejournals/abstract/hmr/doi/10.1055/s-2007-979802  at Uni of Syd Medical library 574.192705 2

Here's some of the old posts from 2003-2005 on taking at least part of thryoid meds at night, some took Armour (THYROID + T4+t3), some took just T4, some took a combo.
Shows that thyroid med consumers have found the benefit of at least some thyroid hormones at night time for a long time, presumably way before this:-)

http://forums.about.com/n/pfx/forum.aspx?tsn=1&nav=messages&webtag=ab-thyroid&tid=46477
I have found that taking Cytomel at night helped me get restful good sleep. My daughter takes Armour at night also and it helps her sleep better.
What is your story?!!! CoachLinda

http://forums.about.com/n/pfx/forum.aspx?tsn=2&nav=messages&webtag=ab-thyroid&tid=46477
Hi, Linda!
Taking my third dose of Armour in the evening between 7 and 10pm helps me sleep better because it appears to prevent the breathing problems that I had previously.
endophobia!

http://forums.about.com/n/pfx/forum.aspx?webtag=ab-thyroid&nav=messages&msg=46477.6
me too endo. I need 15mg Armour equivalent (1/4 g)at night...slow released. Definitely aids sleep, and keeps me a tad warmer during the night. Also I don't feel quite so dead in the morning, so it is easier to get up.
Jan
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http://forums.about.com/n/pfx/forum.aspx?tsn=36&nav=messages&webtag=ab-thyroid&tid=67042  Choccy with thryoid meds at night for better absorption, or at least it sure sounds like a great excuse with some originality!

Ok, I gotcha per taking T4 at nite with chocolate. (Dumb me for not figuring out what you were saying). For the 1st time in my life, I'm not constantly cold. Aren't cold legs, feet & hands the pits? Once my T3 got out of the gutter, warmth followed. Now, I get hot & still am unable to sweat. Maybe adding tyrosine helped, since I began taking it about the same time that T3 inched up. Believe me, I'm not complaining about being warm. It's wonderful to not search out clothing with long sleeves.