It's worth a try and it's certainly a healthy thing to do. I got sick of Kiwis though since I could only find unripe Kiwis in the supermarkets and they never really become sweet.
I have big troubles sleeping through the night since two months. I took Zolpidem for a few weeks but it only gave me 6 hours of sleep which wasn't enough to make up for the 3 hours I usually sleep.
Two nights ago I started adding Taurine and my nights were much better. I take Zinc + Magnesium Aspartate and Taurine on an empty stomach right when I go to sleep.