Close
Why is ReviewMeta.com a Must-Have for Amazon Shoppers?
Free Phone Apps
Free Browser Extensions
Sleep and Relaxation Sounds
More product info
From Voice Apps, LLC.
This report was last updated 2/17/2021.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
View/Edit Adjustment
Jump to Report Card
Report Info:
Note: While Amazon.com claims 17,408 Ratings, we counted 15,656 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL Reviewer Ease
Reviewer EaseFAIL Word Count Comparison
Word Count ComparisonFAIL Phrase Repetition
Phrase RepetitionFAIL Reviewer Participation
Reviewer ParticipationWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Unverified Purchases
Unverified PurchasesPASS Overlapping Review History
Overlapping Review HistoryPASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
We couldn't find any quality reviews
Least Trusted Reviews
AWSOME Birds sleep sounds its my favorite! [Go to full review]
Oct 8, 2017
0%
TRUST
TRUST
-
Unverified Purchaser -
Created on a high volume day -
Overrepresented word count (7 words) -
Contains repetitive phrases (
show)
-
Overrepresented Participation (posted 8 Reviews) -
Critical Reviewer (avg. rating: 4.0)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
2,370 of the 15,656 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.9 while the reviewers who have posted more than one review have rated this product an average of 4.8. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Never-Verified Reviewers
4,469 of the 15,656 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, the discrepancy in ratings between the Never-Verified Reviewers and reviewers who have written at least one verified purchase review isn't significant enough to rule out the possibility of it being due to random chance.
Fail Reviewer Ease
Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.5, while the average ease score for reviewers in this category is 4.3. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
Word Count Comparison
-
- 74%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 11,531 reviews (or 74%) are within an overrepresented word count group. These reviews have rated this product an average of 4.9, while all other reviews have rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail Phrase Repetition
Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
265 reviews
(4.9/5)
(4.9/5)
348 reviews
(5.0/5)
(5.0/5)
161 reviews
(5.0/5)
(5.0/5)
Common Phrases in Titles:
601 reviews
(4.8/5)
(4.8/5)
1,170 of the 15,656 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.8. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail Reviewer Participation
Reviewer Participation
-
- 81%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 12710 reviewers (or 81%) are within an overrepresented participation group. These reviews have rated this product an average of 4.8, while all other reviews have rated this product an average of 4.6. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 113 deleted Reviews for this product, with an average rating of 4.7. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
4.7 average rating of deleted reviews
Warn Rating Trend
Rating Trend
-
- 36%
- Created over 155 days
We counted 15,656 reviews for this product over the span of 1,446 days, an average of 10.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 23 or fewer reviews on any given day.
However, we see the following 155 days exceeding this threshold:In total, we found that 5,626 reviews were created on just 155 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Unverified Purchases
Unverified Purchases
-
- 100%
- Unverified Purchases
15,656 of the 15,656 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate unnatural reviews.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Pass Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
Thunderstorm Sounds by Sleep Jar by Sleep Jar
2% also reviewed:
Echo Dot (2nd Generation) - Smart speaker with... by Amazon
2% also reviewed:
Sleep Sounds by Sleep Jar by Invoked Apps LLC
2% also reviewed:
Ambient Sounds: Rain Sounds by Invoked Apps LLC
1% also reviewed:
Amazon Echo - Black (1st Generation) by Amazon
1% also reviewed:
Ambient Sounds: Ocean Sounds by Invoked Apps LLC
0% also reviewed:
2 Pack Premium... by Sliiq
Does not include products
from the same brand
from the same brand
1,776 of the 15,656 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
771 of the 15,656 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
2 of the 15,656 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.