[Sevrene]

That's very true (depending on the partner's pattern, I guess), and not all contract work allows you to be asleep during the day, some still require phone meetings and the such.

Even working remotely from home, I still have occasional logistical problems because sometimes there are appointments at 9am, or social events in the late morning and this will always be the case.

Just going to have to work with what you've got and work around it to the best of your ability. Although I should probably point out that it is important to find out before hand if there's anything else going on that could be causing this and potentially be resolvable before you stop expending energy fixing something you can't solve.

Although, if you are still having troubles sleeping and waking naturally feeling refreshed do your own research and maybe ask your GP if Melatonin[1] would suit you. Using flux[2] is also a great tool to help get to bed earlier too as that actually increases your melatonin naturally. Melatonin is not really similar to any other sleeping pills and it seems to be quite safe and has a great return on investment[3].

You probably already know about it so sorry if this was an unrequested information dump :)

[1] Wikipedia: Melatonin https://en.wikipedia.org/wiki/Melatonin

[2] Flux: https://justgetflux.com/

[3] Gwern on Melatonin http://www.gwern.net/Melatonin