I have been using Bausch and Lomb "iconnect" monthly disposable lenses for last many years. These come in a box of which contain 3 lenses. So you can order 2 boxes of different numbers for 3 months. The lenses are really smooth and do not cause any kind of irritation or problems to the eyes. I buy them every three months from Lenskart.com at around Rs 240/- per box i.e 480 buck for three months, which is very reasonable price for a monthly disposable lenses. Earlier I used to buy yearly disposable lenses which have much higher water content and can stay on eyes for a longer time continuously but I switched to monthly disposable because, you can always have an extra pair with you.
If you use specs and lenses both then go for B& L iconnect monthly disposable lenses. These are really good for beginners.
Please avoid wearing them overnight. As they tend to stick to eyes and make the eyes heavy in the morning.