Tempdrop is a smart fertility thermometer that gives you the accurate temperature you need for precise ovulation tracking. Worn overnight, Tempdrop takes the stress, guesswork, and early morning wake-ups out of traditional BBT thermometers and makes it easier to identify your fertility window. Tempdrop works even with irregular sleep or cycles and is perfect for nightshift workers or postpartum mamas, but it's also loved by all women who appreciate reliable and convenient temping. Tempdrop is FDA listed and comes in three packages that include risk-free return guarantees and extensive warranty options.