Abstract: An infant's sleep blanket/garment for use with medical monitoring devices, which is offered as either a sleep sack or a sleep shirt, depending on the age of the infant, with the sleep sack further presented with no arm holes and having snugging straps for newborns or with arm holes and sleeves for older infants. An openable monitor cable sheath located inside of the sleeper allows for bundling medical monitoring device cables and IV tubes and enclosing them within the sheath to prevent irritation to the infant and reduce the possibility of the infant becoming entangled in the cables and tubes. Additionally, the upper shoulder and sleeve seams are openable to allow for the installation, maintenance and removal of IV tubes without removing the garment from the infant. Thermometers incorporated into the body of the garment and an optional sleep cap aid in monitoring the infant's temperature as he sleeps.