Nifty Feeding Cup Versus Generic Medicine Cup Preterm Infants Who Have Difficulty Breastfeeding

Inclusion Criteria: Infant * Born preterm (\<37 weeks gestational age) at time of birth * Corrected gestational age is \<37 weeks per the modified Dubowitz score on date of enrollment * Diagnosed with feeding difficulties * Patient in the mother-baby unit at KATH * Clinically indicated to start cup feeding (including an infant who has a nasogastric tube and is cup feeding or indicated to start cup feeding) * Has an anticipated hospital stay that is at least 48 hours Caregiver: * At least 18 years of age * One of the following biologic family members of the infant (Mother, Grandmother, Aunt) * Self-identifies as the primary feeder of the infant * Prior experience feeding the potential infant participant with nipple feeding (e.g. breast feeding, bottle feeding) or nasogastric \[NG\] tube * Verifies willingness to comply with all study procedures Exclusion Criteria: Infant * Congenital anomaly except for minor anomalies (e.g. an extra digit or ear tag is okay) * Other condition or situation that makes infant unlikely to be able to comply with study procedures. Examples include the infant anticipated to not be in hospital long enough, infant has a suspected intestinal obstruction, or necrotizing enterocolitis. * No mother, grandmother, or aunt caregiver available to participate in study * Enrolled in another study at KATH that would interfere with his/her ability to participate in this study.