I could never wash my hair in the sink,my hair is very long and thick and I find it hard to get my hair sopping wet if I wash any other way. I just do everything in the shower, it does get to be a hassle when I wash, condition, detangle and then get out to put my deep conditioner in and then after leaving it on for an hour having to get back in the shower to rinse ...I hate having to get all wet again after I've just showered but I do it.