is precious, it’s worth it. The Real-World Test (With a Toddler and a Seven-Year-Old) I ran the Whisper 2000 for the first time on a weekday at 2:00 PM. My toddler was in the middle of a 90-minute nap. I placed the robot in the hallway outside her room, closed the door, and let it go. The sound was a low whisper — think of a gentle fan in another room. After ten minutes, I peeked in through the baby monitor. She was still sound asleep, thumb in mouth. Meanwhile, the robot cleaned the kitchen, dining room, and living room. It went under the coffee table, around the dog bowl, and over a stray Cheerio without breaking stride. Sparkles, my older daughter, came home from school and asked, “Did the robot clean while the baby slept?

” I said yes. She nodded sagely and said, “That’s smart. It’s like the quietest ninja in the world.” She also tried to name it “Ninja Bot,” but we settled on Sleeping Giant. One thing I noticed: the vacuum

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