I would personally recommend a trial for sleep-in contacts. I did so through my optometrist, firstly wearing them as dailies for a week. Then, after an optometr

I would personally recommend a trial for sleep-in contacts. I did so through my optometrist, firstly wearing them as dailies for a week. Then, after an optometrist inspection, leaving them in for one night, followed by another inspection. Finally, I was to sleep in them for a week (or perhaps five days, I forget) followed by another inspection. This final inspection showed that I had developed an eye ulcer during the final phase of the trial, which I had experienced as a very mild irritation. Luckily, there have been no longer lasting side effects.