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URECAT - UFO Related Entities Catalog

URECAT is a formal catalog of UFO related entities sightings reports with the goal of providing quality information for accurate studies of the topic. Additional information, corrections and reviews are welcome at patrick.gross@inbox.com, please state if you wish to be credited for your contribution or not. The main page of the URECAT catalog is here.


Brief summary of the event and follow-up:

Ufologist Ivan Castillo apparently reported that a woman had seen "an object land on a mountain."

One year later, on an unspecified date of 1977, in Lerida, Spain, late in the night, this woman was alone in her bedroom, when a humanoid character, almost 7 feet tall, suddenly appeared, walking towards her.

Terrified, she hid under the blankets, and felt a heavy weight fall on her. She started to scram and the humanoid apparently disappeared.

Basic information table:

Case number: URECAT-000366
Date of event: 1977
Earliest report of event: 2000?
Delay of report: Decades?
Witness reported via: Not known.
First alleged record by: Ufologist.
First certain record by: Ufology catalogue.
First alleged record type: Ufologist.
First certain record type: Ufology catalogue.
This file created on: November 22, 2007
This file last updated on: November 22, 2007
Country of event: Spain
State/Department: Lerida
Type of location: In bed in bedroom.
Lighting conditions: Night
UFO observed: No
UFO arrival observed: No
UFO departure observed: No
UFO/Entity Relation: None.
Witnesses numbers: 1
Witnesses ages: Not reported.
Witnesses types: Not reported. Girl or woman.
Photograph(s): No.
Witnesses drawing: No.
Witnesses-approved drawing: No.
Number of entities: 1
Type of entities: Humanoid
Entities height: 2.10 meters
Entities outfit type: Not reported.
Entities outfit color: Not reported.
Entities skin color: Not reported.
Entities body: Not reported.
Entities head: Not reported.
Entities eyes: Not reported.
Entities mouth: Not reported.
Entities nose: Not reported.
Entities feet: Not reported.
Entities arms: Not reported.
Entities fingers: Not reported.
Entities fingers number: Not reported.
Entities hair: Not reported.
Entities voice: None heard.
Entities actions: Walked towards bed.
Entities/witness interactions: None.
Witness(es) reactions: Observed, hid under blankets, shouted.
Witness(es) feelings: Frightened.
Witness(es) interpretation: Not reported.
Explanation category: Probable hypnagogic hallucination.
Explanation certainty: High.



Albert Rosales indicates in his catalogue that in Lerida, Spain, on 1977, late in the night, a year before, the witness had seen an object land on top of a mountain. On this night she was alone in her bedroom when an almost 7-foot tall humanoid figure suddenly appeared walking toward her. Terrified she hid under the blankets, and felt a heavy weight fall on her. She began to scream and the humanoid apparently disappeared.

Albert Rosales indicates that the source is Ivan Castillo, Aņo Cero.

He comments that the connection with the earlier UFO sighting is tentative, and that this type of bedroom encounter where a tall heavy set humanoid assaults a witness has been reported before and since. He suggests: could it be related to the sleep paralysis syndrome?

Points to consider:

As rightfully pointed by Albert Rosales, the UFO sighting a year before the bedroom visitor experience should not be viewed as related in the strict sense of the term. Besides, seeing "an object land on a mountain" hardly constitute a sighting of high strangeness, and no information exists about it to discard any type of possible confusion. A link however can be that the sighting impressed the witness enough to have an impact of her thoughts during sleep and become the imaginary material of the hypnagogic hallucination she probably experienced - not one item of the report gives the least reason to think that it was not an hypnagogic hallucination and sleep paralysis episode, quite the contrary.

I provide a few references among dozens about the topic of hypnagogic hallucination and sleep paralysis:

List of issues:

Id: Topic: Severity: Date noted: Raised by: Noted by: Description: Proposal: Status:
1 Data Severe November 22, 2007 Patrick Gross Patrick Gross Reference of primary source not sufficiently precise. Help needed. Opened.
2 Data Severe November 22, 2007 Patrick Gross Patrick Gross Primary source not available. Help needed. Opened.
3 Ufology Severe November 22, 2007 Patrick Gross Patrick Gross Bed experience, with no indication that an hypnagogic hallucination was considered or discarded. Help needed. Opened.
4 Ufology Severe November 22, 2007 Patrick Gross Patrick Gross Insufficient data, no date, no time, no exact place, no clear description etc. Help needed. Opened.
5 Ufology Severe November 22, 2007 Patrick Gross Patrick Gross No trace of investigation, no information on nature of report (letter, newspaper...). Help needed. Opened.
6 Ufology Severe November 22, 2007 Patrick Gross Patrick Gross Witness age, name, background not specified. Help needed. Opened.


Probable hypnagogic hallucination.

Sources references:

* = Source I checked.
? = Source I am told about but could not check yet. Help appreciated.

Document history:


Main Author: Patrick Gross
Contributors: None
Reviewers: None
Editor: Patrick Gross

Changes history

Version: Created/Changed By: Date: Change Description:
0.1 Patrick Gross November 22, 2007 Creation, [ar1].
1.0 Patrick Gross November 22, 2007 First published.

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This page was last updated on November 22, 2007