An Indica cannabis strain is a cannabis subspecies with short stems and thick leaves. Indica strains are well-known for their calming, sedative, and soothing effects. Although research is not definitive on whether Indica strains are more sedating than energizing sativa strains, longterm marijuana users know that Indica do cause a better night’s sleep than sativa buds. When Indica vs Sativa strains are compared, an Indica strain usually produces a body high.