How long do hair extensions take to dry?

I have 100% human hair extensions, I've heard that blow drying is bad for them and they are quite thin so i don't want to damage them even more. I washed them about 15 minutes ago and left them to dry, but how long does it take ? I really want them ready for tomorrow morning :-) Thank you !How long do hair extensions take to dry?
They should be dry by the morning but you could blow dry them using the cool setting on your hairdryer no problem. This site sells extensions and says this is fine to do in their tips section:

http://www.rapunzelrapunzel.co.uk/faq-an/a>How long do hair extensions take to dry?
I have 100% human hair extensions I've had them in for 3 months now and they are still silky and smooth. When I get out of the shower I immediately use a towel to soak excess water from my hair, then I spray on a leave in conditioner or a de-tangeling spray and lightly comb out my hair. Then I twist my hair place it on top of my hair and put the towel back on my head. I usually watch tv for about 30 minutes then take the towel out and use a round brush to dry my natural hair. Then i let my extensions air dry with sirum on them and they dry in the next 30 minutes. So usually i spend about an hour on my hair. If I shower before I go to bed i braid my hair in one long braid ( I go to bed around 10pm). Then when i wake up (around 6:30) my hair is mostly dry except for around the bottom of my neck. So i just lightly blow dry the bottom and put sirum on my hair as i'm walking out the door. Hope this helps good luck!