4 1-night bookings rather than 1 4-night

So often I see that there are significantly different prices for consecutive nights, all for exactly the same room. Fair enough. But when I choose a 4 night stay it prices up as 4x the highest night's rate, rather than the sum of the individual night rates. So I have to do 4 different bookings at the hotel for the week, to stop being overcharged. Really frustrating and timewasting, especially when you get to the hotel to checkin and have to sign 4 forms.

Anyone else find themselves having to do such?